Home / 1,535.12-2,302.71-611.11

Finding the Fourth Proportional to 1,535.12, 2,302.71 and 611.11

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Solution

The fourth proportional to 1,535.12, 2,302.71 and 611.11 is: 916.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,535.12 : 2,302.71 = 611.11 : x
  2. Step 2: Convert to fraction form
    1,535.12/2,302.71 = 611.11/x
  3. Step 3: Cross multiply
    1,535.12x = 2,302.71 × 611.11
  4. Step 4: Simplify right side
    1,535.12x = 1,407,209.11
  5. Step 5: Solve for x
    x = 1,407,209.11/1,535.12
  6. Step 6: Final answer
    x = 916.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.